
Laennec's stethoscope
1815-1825
1815-1825
1821
circa 1805
1807
1815
1815
1863-7
1808
1800
1807
1821
1800
1800
1800
1807
1812
1800
1807
1814
1802
1816
1802
1799-1802
circa 1810
1815
1799
1806
1810-1817
1798
1893-4
1805
1800
1812
1805-1815
circa 1808
2000-100 BCE
1813
1826
1808
1801
1826
circa 1821-1825
1815-1825
1823-1825
1822
mid-1800s
1800-1818
1705-1737
1800
1820